OK, let's crack this. We're given 137 and our task is to multiply it by 356. Essentially, we'll be adding 137 to itself 356 times.
Step 1: 0 + 137 = 137
Step 2: 137 + 137 = 274
Step 3: 274 + 137 = 411
Step 4: 411 + 137 = 548
Step 5: 548 + 137 = 685
Step 6: 685 + 137 = 822
Step 7: 822 + 137 = 959
Step 8: 959 + 137 = 1096
Step 9: 1096 + 137 = 1233
Step 10: 1233 + 137 = 1370
Step 11: 1370 + 137 = 1507
Step 12: 1507 + 137 = 1644
Step 13: 1644 + 137 = 1781
Step 14: 1781 + 137 = 1918
Step 15: 1918 + 137 = 2055
Step 16: 2055 + 137 = 2192
Step 17: 2192 + 137 = 2329
Step 18: 2329 + 137 = 2466
Step 19: 2466 + 137 = 2603
Step 20: 2603 + 137 = 2740
Step 21: 2740 + 137 = 2877
Step 22: 2877 + 137 = 3014
Step 23: 3014 + 137 = 3151
Step 24: 3151 + 137 = 3288
Step 25: 3288 + 137 = 3425
Step 26: 3425 + 137 = 3562
Step 27: 3562 + 137 = 3699
Step 28: 3699 + 137 = 3836
Step 29: 3836 + 137 = 3973
Step 30: 3973 + 137 = 4110
Step 31: 4110 + 137 = 4247
Step 32: 4247 + 137 = 4384
Step 33: 4384 + 137 = 4521
Step 34: 4521 + 137 = 4658
Step 35: 4658 + 137 = 4795
Step 36: 4795 + 137 = 4932
Step 37: 4932 + 137 = 5069
Step 38: 5069 + 137 = 5206
Step 39: 5206 + 137 = 5343
Step 40: 5343 + 137 = 5480
Step 41: 5480 + 137 = 5617
Step 42: 5617 + 137 = 5754
Step 43: 5754 + 137 = 5891
Step 44: 5891 + 137 = 6028
Step 45: 6028 + 137 = 6165
Step 46: 6165 + 137 = 6302
Step 47: 6302 + 137 = 6439
Step 48: 6439 + 137 = 6576
Step 49: 6576 + 137 = 6713
Step 50: 6713 + 137 = 6850
Step 51: 6850 + 137 = 6987
Step 52: 6987 + 137 = 7124
Step 53: 7124 + 137 = 7261
Step 54: 7261 + 137 = 7398
Step 55: 7398 + 137 = 7535
Step 56: 7535 + 137 = 7672
Step 57: 7672 + 137 = 7809
Step 58: 7809 + 137 = 7946
Step 59: 7946 + 137 = 8083
Step 60: 8083 + 137 = 8220
Step 61: 8220 + 137 = 8357
Step 62: 8357 + 137 = 8494
Step 63: 8494 + 137 = 8631
Step 64: 8631 + 137 = 8768
Step 65: 8768 + 137 = 8905
Step 66: 8905 + 137 = 9042
Step 67: 9042 + 137 = 9179
Step 68: 9179 + 137 = 9316
Step 69: 9316 + 137 = 9453
Step 70: 9453 + 137 = 9590
Step 71: 9590 + 137 = 9727
Step 72: 9727 + 137 = 9864
Step 73: 9864 + 137 = 10001
Step 74: 10001 + 137 = 10138
Step 75: 10138 + 137 = 10275
Step 76: 10275 + 137 = 10412
Step 77: 10412 + 137 = 10549
Step 78: 10549 + 137 = 10686
Step 79: 10686 + 137 = 10823
Step 80: 10823 + 137 = 10960
Step 81: 10960 + 137 = 11097
Step 82: 11097 + 137 = 11234
Step 83: 11234 + 137 = 11371
Step 84: 11371 + 137 = 11508
Step 85: 11508 + 137 = 11645
Step 86: 11645 + 137 = 11782
Step 87: 11782 + 137 = 11919
Step 88: 11919 + 137 = 12056
Step 89: 12056 + 137 = 12193
Step 90: 12193 + 137 = 12330
Step 91: 12330 + 137 = 12467
Step 92: 12467 + 137 = 12604
Step 93: 12604 + 137 = 12741
Step 94: 12741 + 137 = 12878
Step 95: 12878 + 137 = 13015
Step 96: 13015 + 137 = 13152
Step 97: 13152 + 137 = 13289
Step 98: 13289 + 137 = 13426
Step 99: 13426 + 137 = 13563
Step 100: 13563 + 137 = 13700
Step 101: 13700 + 137 = 13837
Step 102: 13837 + 137 = 13974
Step 103: 13974 + 137 = 14111
Step 104: 14111 + 137 = 14248
Step 105: 14248 + 137 = 14385
Step 106: 14385 + 137 = 14522
Step 107: 14522 + 137 = 14659
Step 108: 14659 + 137 = 14796
Step 109: 14796 + 137 = 14933
Step 110: 14933 + 137 = 15070
Step 111: 15070 + 137 = 15207
Step 112: 15207 + 137 = 15344
Step 113: 15344 + 137 = 15481
Step 114: 15481 + 137 = 15618
Step 115: 15618 + 137 = 15755
Step 116: 15755 + 137 = 15892
Step 117: 15892 + 137 = 16029
Step 118: 16029 + 137 = 16166
Step 119: 16166 + 137 = 16303
Step 120: 16303 + 137 = 16440
Step 121: 16440 + 137 = 16577
Step 122: 16577 + 137 = 16714
Step 123: 16714 + 137 = 16851
Step 124: 16851 + 137 = 16988
Step 125: 16988 + 137 = 17125
Step 126: 17125 + 137 = 17262
Step 127: 17262 + 137 = 17399
Step 128: 17399 + 137 = 17536
Step 129: 17536 + 137 = 17673
Step 130: 17673 + 137 = 17810
Step 131: 17810 + 137 = 17947
Step 132: 17947 + 137 = 18084
Step 133: 18084 + 137 = 18221
Step 134: 18221 + 137 = 18358
Step 135: 18358 + 137 = 18495
Step 136: 18495 + 137 = 18632
Step 137: 18632 + 137 = 18769
Step 138: 18769 + 137 = 18906
Step 139: 18906 + 137 = 19043
Step 140: 19043 + 137 = 19180
Step 141: 19180 + 137 = 19317
Step 142: 19317 + 137 = 19454
Step 143: 19454 + 137 = 19591
Step 144: 19591 + 137 = 19728
Step 145: 19728 + 137 = 19865
Step 146: 19865 + 137 = 20002
Step 147: 20002 + 137 = 20139
Step 148: 20139 + 137 = 20276
Step 149: 20276 + 137 = 20413
Step 150: 20413 + 137 = 20550
Step 151: 20550 + 137 = 20687
Step 152: 20687 + 137 = 20824
Step 153: 20824 + 137 = 20961
Step 154: 20961 + 137 = 21098
Step 155: 21098 + 137 = 21235
Step 156: 21235 + 137 = 21372
Step 157: 21372 + 137 = 21509
Step 158: 21509 + 137 = 21646
Step 159: 21646 + 137 = 21783
Step 160: 21783 + 137 = 21920
Step 161: 21920 + 137 = 22057
Step 162: 22057 + 137 = 22194
Step 163: 22194 + 137 = 22331
Step 164: 22331 + 137 = 22468
Step 165: 22468 + 137 = 22605
Step 166: 22605 + 137 = 22742
Step 167: 22742 + 137 = 22879
Step 168: 22879 + 137 = 23016
Step 169: 23016 + 137 = 23153
Step 170: 23153 + 137 = 23290
Step 171: 23290 + 137 = 23427
Step 172: 23427 + 137 = 23564
Step 173: 23564 + 137 = 23701
Step 174: 23701 + 137 = 23838
Step 175: 23838 + 137 = 23975
Step 176: 23975 + 137 = 24112
Step 177: 24112 + 137 = 24249
Step 178: 24249 + 137 = 24386
Step 179: 24386 + 137 = 24523
Step 180: 24523 + 137 = 24660
Step 181: 24660 + 137 = 24797
Step 182: 24797 + 137 = 24934
Step 183: 24934 + 137 = 25071
Step 184: 25071 + 137 = 25208
Step 185: 25208 + 137 = 25345
Step 186: 25345 + 137 = 25482
Step 187: 25482 + 137 = 25619
Step 188: 25619 + 137 = 25756
Step 189: 25756 + 137 = 25893
Step 190: 25893 + 137 = 26030
Step 191: 26030 + 137 = 26167
Step 192: 26167 + 137 = 26304
Step 193: 26304 + 137 = 26441
Step 194: 26441 + 137 = 26578
Step 195: 26578 + 137 = 26715
Step 196: 26715 + 137 = 26852
Step 197: 26852 + 137 = 26989
Step 198: 26989 + 137 = 27126
Step 199: 27126 + 137 = 27263
Step 200: 27263 + 137 = 27400
Step 201: 27400 + 137 = 27537
Step 202: 27537 + 137 = 27674
Step 203: 27674 + 137 = 27811
Step 204: 27811 + 137 = 27948
Step 205: 27948 + 137 = 28085
Step 206: 28085 + 137 = 28222
Step 207: 28222 + 137 = 28359
Step 208: 28359 + 137 = 28496
Step 209: 28496 + 137 = 28633
Step 210: 28633 + 137 = 28770
Step 211: 28770 + 137 = 28907
Step 212: 28907 + 137 = 29044
Step 213: 29044 + 137 = 29181
Step 214: 29181 + 137 = 29318
Step 215: 29318 + 137 = 29455
Step 216: 29455 + 137 = 29592
Step 217: 29592 + 137 = 29729
Step 218: 29729 + 137 = 29866
Step 219: 29866 + 137 = 30003
Step 220: 30003 + 137 = 30140
Step 221: 30140 + 137 = 30277
Step 222: 30277 + 137 = 30414
Step 223: 30414 + 137 = 30551
Step 224: 30551 + 137 = 30688
Step 225: 30688 + 137 = 30825
Step 226: 30825 + 137 = 30962
Step 227: 30962 + 137 = 31099
Step 228: 31099 + 137 = 31236
Step 229: 31236 + 137 = 31373
Step 230: 31373 + 137 = 31510
Step 231: 31510 + 137 = 31647
Step 232: 31647 + 137 = 31784
Step 233: 31784 + 137 = 31921
Step 234: 31921 + 137 = 32058
Step 235: 32058 + 137 = 32195
Step 236: 32195 + 137 = 32332
Step 237: 32332 + 137 = 32469
Step 238: 32469 + 137 = 32606
Step 239: 32606 + 137 = 32743
Step 240: 32743 + 137 = 32880
Step 241: 32880 + 137 = 33017
Step 242: 33017 + 137 = 33154
Step 243: 33154 + 137 = 33291
Step 244: 33291 + 137 = 33428
Step 245: 33428 + 137 = 33565
Step 246: 33565 + 137 = 33702
Step 247: 33702 + 137 = 33839
Step 248: 33839 + 137 = 33976
Step 249: 33976 + 137 = 34113
Step 250: 34113 + 137 = 34250
Step 251: 34250 + 137 = 34387
Step 252: 34387 + 137 = 34524
Step 253: 34524 + 137 = 34661
Step 254: 34661 + 137 = 34798
Step 255: 34798 + 137 = 34935
Step 256: 34935 + 137 = 35072
Step 257: 35072 + 137 = 35209
Step 258: 35209 + 137 = 35346
Step 259: 35346 + 137 = 35483
Step 260: 35483 + 137 = 35620
Step 261: 35620 + 137 = 35757
Step 262: 35757 + 137 = 35894
Step 263: 35894 + 137 = 36031
Step 264: 36031 + 137 = 36168
Step 265: 36168 + 137 = 36305
Step 266: 36305 + 137 = 36442
Step 267: 36442 + 137 = 36579
Step 268: 36579 + 137 = 36716
Step 269: 36716 + 137 = 36853
Step 270: 36853 + 137 = 36990
Step 271: 36990 + 137 = 37127
Step 272: 37127 + 137 = 37264
Step 273: 37264 + 137 = 37401
Step 274: 37401 + 137 = 37538
Step 275: 37538 + 137 = 37675
Step 276: 37675 + 137 = 37812
Step 277: 37812 + 137 = 37949
Step 278: 37949 + 137 = 38086
Step 279: 38086 + 137 = 38223
Step 280: 38223 + 137 = 38360
Step 281: 38360 + 137 = 38497
Step 282: 38497 + 137 = 38634
Step 283: 38634 + 137 = 38771
Step 284: 38771 + 137 = 38908
Step 285: 38908 + 137 = 39045
Step 286: 39045 + 137 = 39182
Step 287: 39182 + 137 = 39319
Step 288: 39319 + 137 = 39456
Step 289: 39456 + 137 = 39593
Step 290: 39593 + 137 = 39730
Step 291: 39730 + 137 = 39867
Step 292: 39867 + 137 = 40004
Step 293: 40004 + 137 = 40141
Step 294: 40141 + 137 = 40278
Step 295: 40278 + 137 = 40415
Step 296: 40415 + 137 = 40552
Step 297: 40552 + 137 = 40689
Step 298: 40689 + 137 = 40826
Step 299: 40826 + 137 = 40963
Step 300: 40963 + 137 = 41100
Step 301: 41100 + 137 = 41237
Step 302: 41237 + 137 = 41374
Step 303: 41374 + 137 = 41511
Step 304: 41511 + 137 = 41648
Step 305: 41648 + 137 = 41785
Step 306: 41785 + 137 = 41922
Step 307: 41922 + 137 = 42059
Step 308: 42059 + 137 = 42196
Step 309: 42196 + 137 = 42333
Step 310: 42333 + 137 = 42470
Step 311: 42470 + 137 = 42607
Step 312: 42607 + 137 = 42744
Step 313: 42744 + 137 = 42881
Step 314: 42881 + 137 = 43018
Step 315: 43018 + 137 = 43155
Step 316: 43155 + 137 = 43292
Step 317: 43292 + 137 = 43429
Step 318: 43429 + 137 = 43566
Step 319: 43566 + 137 = 43703
Step 320: 43703 + 137 = 43840
Step 321: 43840 + 137 = 43977
Step 322: 43977 + 137 = 44114
Step 323: 44114 + 137 = 44251
Step 324: 44251 + 137 = 44388
Step 325: 44388 + 137 = 44525
Step 326: 44525 + 137 = 44662
Step 327: 44662 + 137 = 44799
Step 328: 44799 + 137 = 44936
Step 329: 44936 + 137 = 45073
Step 330: 45073 + 137 = 45210
Step 331: 45210 + 137 = 45347
Step 332: 45347 + 137 = 45484
Step 333: 45484 + 137 = 45621
Step 334: 45621 + 137 = 45758
Step 335: 45758 + 137 = 45895
Step 336: 45895 + 137 = 46032
Step 337: 46032 + 137 = 46169
Step 338: 46169 + 137 = 46306
Step 339: 46306 + 137 = 46443
Step 340: 46443 + 137 = 46580
Step 341: 46580 + 137 = 46717
Step 342: 46717 + 137 = 46854
Step 343: 46854 + 137 = 46991
Step 344: 46991 + 137 = 47128
Step 345: 47128 + 137 = 47265
Step 346: 47265 + 137 = 47402
Step 347: 47402 + 137 = 47539
Step 348: 47539 + 137 = 47676
Step 349: 47676 + 137 = 47813
Step 350: 47813 + 137 = 47950
Step 351: 47950 + 137 = 48087
Step 352: 48087 + 137 = 48224
Step 353: 48224 + 137 = 48361
Step 354: 48361 + 137 = 48498
Step 355: 48498 + 137 = 48635
Step 356: 48635 + 137 = 48772

So, 137*356 = 48772